From: Milan Broz Date: Thu, 20 Aug 2020 17:45:38 +0000 (+0200) Subject: dm crypt: document new no_workqueue flags X-Git-Tag: v5.10.7~1431^2~22 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4a5caa4af0df5cd8f1c7f0c2f871d382662b022e;p=platform%2Fkernel%2Flinux-rpi.git dm crypt: document new no_workqueue flags Commit 39d42fa96ba1 ("dm crypt: add flags to optionally bypass kcryptd workqueues") introduced new dm-crypt 'no_read_workqueue' and 'no_write_workqueue' flags. Add documentation to admin guide for them. Fixes: 39d42fa96ba1 ("dm crypt: add flags to optionally bypass kcryptd workqueues") Signed-off-by: Milan Broz Signed-off-by: Mike Snitzer --- diff --git a/Documentation/admin-guide/device-mapper/dm-crypt.rst b/Documentation/admin-guide/device-mapper/dm-crypt.rst index 8f4a3f8..40dc2df 100644 --- a/Documentation/admin-guide/device-mapper/dm-crypt.rst +++ b/Documentation/admin-guide/device-mapper/dm-crypt.rst @@ -121,6 +121,14 @@ submit_from_crypt_cpus thread because it benefits CFQ to have writes submitted using the same context. +no_read_workqueue + Bypass dm-crypt internal workqueue and process read requests synchronously. + +no_write_workqueue + Bypass dm-crypt internal workqueue and process write requests synchronously. + This option is automatically enabled for host-managed zoned block devices + (e.g. host-managed SMR hard-disks). + integrity:: The device requires additional metadata per-sector stored in per-bio integrity structure. This metadata must by provided